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      1 /*
      2  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
      3  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1.  Redistributions of source code must retain the above copyright
     10  *     notice, this list of conditions and the following disclaimer.
     11  * 2.  Redistributions in binary form must reproduce the above copyright
     12  *     notice, this list of conditions and the following disclaimer in the
     13  *     documentation and/or other materials provided with the distribution.
     14  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     15  *     its contributors may be used to endorse or promote products derived
     16  *     from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     21  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #ifndef PolicyCallback_h
     31 #define PolicyCallback_h
     32 
     33 #include "FrameLoaderTypes.h"
     34 #include "PlatformString.h"
     35 #include "ResourceRequest.h"
     36 #include <wtf/RefPtr.h>
     37 
     38 namespace WebCore {
     39 
     40 class FormState;
     41 
     42 typedef void (*NavigationPolicyDecisionFunction)(void* argument,
     43     const ResourceRequest&, PassRefPtr<FormState>, bool shouldContinue);
     44 typedef void (*NewWindowPolicyDecisionFunction)(void* argument,
     45     const ResourceRequest&, PassRefPtr<FormState>, const String& frameName, bool shouldContinue);
     46 typedef void (*ContentPolicyDecisionFunction)(void* argument, PolicyAction);
     47 
     48 class PolicyCallback {
     49 public:
     50     PolicyCallback();
     51     ~PolicyCallback();
     52 
     53     void clear();
     54     void set(const ResourceRequest&, PassRefPtr<FormState>,
     55         NavigationPolicyDecisionFunction, void* argument);
     56     void set(const ResourceRequest&, PassRefPtr<FormState>, const String& frameName,
     57         NewWindowPolicyDecisionFunction, void* argument);
     58     void set(ContentPolicyDecisionFunction, void* argument);
     59 
     60     const ResourceRequest& request() const { return m_request; }
     61     void clearRequest();
     62 
     63     void call(bool shouldContinue);
     64     void call(PolicyAction);
     65     void cancel();
     66 
     67 private:
     68     ResourceRequest m_request;
     69     RefPtr<FormState> m_formState;
     70     String m_frameName;
     71 
     72     NavigationPolicyDecisionFunction m_navigationFunction;
     73     NewWindowPolicyDecisionFunction m_newWindowFunction;
     74     ContentPolicyDecisionFunction m_contentFunction;
     75     void* m_argument;
     76 };
     77 
     78 } // namespace WebCore
     79 
     80 #endif // PolicyCallback_h
     81